As a Pokémon expert, I'm here to provide you with accurate information on how to evolve your Pokémon. To evolve a Shellder into Cloyster, you'll need to follow a specific method. In the main series games, Shellder evolves into Cloyster when traded while holding a Shell Bell. Here's the step-by-step process:


1. Trade: Find a friend who is willing to trade with you. You'll need to trade your Shellder to them.

2. Shell Bell: Before trading, make sure your Shellder is holding a Shell Bell. You can obtain a Shell Bell in various ways, such as finding it on wild Shellder or buying one from a Poké Mart.

3. Evolution: Once the trade is completed, Shellder will evolve into Cloyster immediately.

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Shellder (Japanese: ��������` Shellder) is a Water-type Pok��mon introduced in Generation I. It evolves into Cloyster when exposed to a Water Stone.read more >>